| Solution |
- Radio 3 provides a 6Ghz band for the wireless client, which enables channels for UNII-5, UNII-6, UNII-7 and UNII-8.
- Verify if the geographical region where the AP is deployed supports wifi 6E. See Wi-Fi.org's regulations for enabling 6 GHz Wi-Fi.
- Verify that the FortiAP is configured with the correct country code profile. See Troubleshooting Tip: The SSID is not broadcasting Issue on FortiAP/FortiGate setup.
- Upgrade the FortiAP to the latest version and check the behavior.
- Login to the ForiAP CLI, run the command #rcfg, and look for the radio 2 HW channel list.
Note: Since FortiAP indexes start from 0:
- Radio 0 - 2.4GHz.
- Radio 1- 5GHz.
- Radio 2 - 6GHz.
rcfg
Regcode: E
Radio 2: AP
country : cfg=DE oper=DE
countryID : cfg=276 oper=276
802.11d enable : enabled
sta info : 0/0
radio type : 11AX_6G
mimo,chainmask : 2, 0x3 (mimo) 0x3 (power) 0x3/0x3 (oper)
airtime fairness : disabled
ps optimize : 0
tx optimize : f
11g prot mode : 0
HT20/40 coext : 1
beacon intv : 100
txpwr mode : set by percentage (100%)
txpwr cfg/oper/max : 14/14/14 (EIRP +9)
VHT param : gi=disabled bw=20MHz
ack timeout : 25
r_ac MAX dista : 0 ackt_2G=64 ackt_5G=25
r_ac chan : num=0 age=169426
channel : num=0
oper_chan : 1
r_ac md_cap : 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61,
65, 69, 73, 77, 81, 85, 89, 93,
r_ac chan list : 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61,
65, 69, 73, 77, 81, 85, 89, 93,
chan list : 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61,
65, 69, 73, 77, 81, 85, 89, 93,
hw_chan list : 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 41, 45, 49, 53, 57, 61, <----- Supported channels for Radio 3.
65, 69, 73, 77, 81, 85, 89, 93,
- When the FortiAP does not support 6GHz channels, the 'rcfg' output will show as follows.
Radio 2: AP
country : cfg=HU oper=HU
countryID : cfg=348 oper=348
802.11d enable : enabled
sta info : 0/0
radio type : 11AX_6G
mimo,chainmask : 2, 0x3 (mimo) 0x3 (power) 0x3/0x3 (oper)
airtime fairness : disabled
ps optimize : 0
tx optimize : f
11g prot mode : 0
HT20/40 coext : 1
beacon intv : 100
txpwr mode : set by percentage (100%)
txpwr cfg/oper/max : 50/50/50 (EIRP +9)
VHT param : gi=disabled bw=20MHz
ack timeout : 25
r_ac MAX dista : 0 ackt_2G=64 ackt_5G=25
r_ac chan : num=0 age=64
channel : num=0
oper_chan : 0
r_ac md_cap :
r_ac chan list :
chan list :
hw_chan list : <---- (The hardware channel list is missing: this means the hardware did not report available channels to the OS.)
nol list :
chutil meas : enabled
sensor mode : disabled (applied promisc mode=disabled)
ap scan : background regular scan,
ap scan thresh : 0 dBm
- An empty HW channel list could mean any of the following:
- A regulatory restriction Is Blocking Radio 3.
- The country code does not allow 6 GHz (Wi-Fi 6E).
- The country has not fully adopted 6 GHz (Wi-Fi 6E) for indoor/outdoor Wi-Fi use.
Summary:
FortiAPs enforce strict country-code-based channel restrictions to remain compliant.
If no valid 6 GHz channels are allowed under the current regulatory domain, the AP will:
- Not assign a channel.
- Not initialize the radio fully.
Show empty hardware and software channel lists since there is no legal channel to operate on.
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